Stop motion for textile machines



EQJQP- H. T. OVERBEY STOP MOTION FOR TEXTILE MACHINES Filed Dec. 7, 1943 4 Sheets-Sheet l lure/1101' HEB/W7 701/5255) W and Aug. 7, 1945. HT. OVERBEY STOP MOTION FOR TEXTILE MACHINES Filed Dec. 7, 1943 4 Sheets-Sheet 2 lure/Ito) flie mm Tal /285) Y and m. a z 5 1 l I g! I '1 lmrm ys Aug. 7, 1945. H. T. QVERBEY 2,381,683

' STOP MOTION FOR TEXTILE MACHINES Filed Dec. 7, 1945 4 Sheets-Sheet 3 Ini/entar w 9 Q' 3? K: 31

Aug. 7, 1945. 1 H. T. OVERBEY 2,381,683

STOP MOTION FOR TEXTILE MACHINES Filed Dec. 7, 1943 4 Sheets-Sheet 4 L I l i 58 PF" I I 60 S l 55 I nventor HEP/W717 TOVE2B v Patented Aug. 7, 1945 STOP MOTION FOR TEXTILE MACHINES Herman T. Overbey, Wadesboro, N. 0., assignor of one-third to J. F. Martin and one-third to H. P. Taylor, both of Wadesboro, N. 0.

Application December 7, 1.943, Serial No. 513,276

12 Claims.

The present invention relates to new and useful improvements in textile machines and more particularly to a stop motion mechanism for warp-wind spinning and twisting machines to stop the machine after a predetermined yardage of thread or yarn has been wound on the bobbin.

More specifically the invention involves the provision of pneumatic means for controlling the operation of the machine, and a valve trip mechanism operatively connected to the ring rail for the bobbins to open the valve upon completion of a predetermined number of actuating or regular movements of a traverse motion.

An important object of the invention is to provide a resetting mechanism adapted to control opening movement of the valve for the stop motion in accordance with a desired yardage to be wound on the bobbins and in which the resetting mechanism is capable of a wide range of adjustment.

A further object is to provide a device of this character adapted for use in operating a pneumatic stop motion mechanism of the type disclosed in my prior Patent No. 2,283,283, dated May 19, 1942.

Another object is to provide a device of this character which is simple and practical in construction, efficient and reliable in operation, relatively inexpensive to manufacture and install upon any conventional type of spinning and twisting machine, and which otherwise is well adapted for the purposes for which the same is intended.

4 mounted on the shaft to which the belt 6 may 'Other objects and advantages reside in the t details of construction and operation as more fully hereinafter described and claimed, referfence being had to the accompanying drawings Figure 3 is an enlarged side elevational View of the step by step .valve actuating mechanism. Figure 4 is a similar view of another side of the mechanism.

Figure 5 is a detail of the valve actuating arm with parts shown in section.

Figure 6 is a detail of the said arm with the indicator shown attached thereto.

Figure 7 is a detail of the connection between the push rod and ratcheting device.

be shifted to interrupt operation of the machine through the medium of a compressed air cylinder l2 connected to the belt shifting fork I3 by the rod 14 and connector l5 as described in my aforesaid prior Patent No. 2,283,283.

A compressed air pipe 16 leads to the cylinder [2 from the outlet end of a control valve I! of conventional construction and which includes a valve stem l8 projecting below the valve casing for actuation by one end of a lever l9 pivoted intermediate its endsv to a bracket 20 and has its other end underlying and in the path of the lower end of a plunger 2| which projects below and works in a cylinder 22 cast on the side of the valve casing I1.

To the top of the cylinder 22 is attached an air pipe 23 leading from a valve 24, preferably of the conventional ball type, and to the inlet side of which a supply pipe 25 is attached leading to a suitable source of supply of compressed air (not shown), the pipe 25 being also connected to the inlet side of the valve H.

The valve 24 is provided with a slidable actuating stem 26 for raising the ball therein, the stem having a tapered lower end projecting below the valve and disposed in the path of an arm 21 having a free end formed with oppositely beveled edges 28 and 29 for engagement with thestem 26 as shown to advantage in Figure 5.

The arm 21 includes an outer section 30 and an inner section 3| pivotally connectedin end to end relation by a pin 32. The connected end of the section 3| is bifurcated as at 33 to receive a reduced extension 34 onthe section 30 to form shoulders 35 thereon which abut the bifurcated ends of the section 3! to prevent pivotal movement of the sections in one direction. One edge of the bifurcated end 33 of the section 3| is rounded as shown at 36 to permit pivotal movement of the outer section 3|] in an opposite direction and is yieldably restrained from such movement by a leaf spring 31 attached to said edge by a bolt or screw 38.

The inner end of the section 3| is adjustably threaded in the peripheral edge of a disk 39 freely mounted on a shaft 40 which is joumaled in bearings 4l formed on a bracket 42 and attached to the valve casing 24. The collar is clamped against a disk 39 by a knurled nut 44, the disk being keyed on the shaft for actuating the arm 2'! in a step-by-step movement in accordance with the rotation of the shaft.

A disk dial 43 is loosely mounted on the shaft 40 and is secured in a fixed position to an arm 42 of the bracket 42 by a bolt 42. The peripheral edge of the dial is marked with graduations 45 indicating completed upward and downward strokes of the ring rail 13 of the machine, each stroke representing a predetermined yardage of thread wound on the bobbins. A pointer 46 is attached to the arm 21, the pointer being adjustable circumferentially of the edge of the dial by releasing the nut 44 and turning the collar 39 on the shaft.

A bracket 49 of angular construction has one end underlying and attached to the bracket 42 and the other end of the bracket 49 is formed with an attaching plate 50 having slots 5| therein for adjustably attaching to the under side of one of the side frame members 52 of the frame 5 by means of bolts 53.

A bell-crank lever 54 is secured intermediate its ends to the shaft 40, one end of the lever having an extension rod 55 threaded therein for longitudinal adjustment of the rod and which is held in its adjusted position by a jamb nut 56. To the outer end of the rod is adjustably secured a collar 51 by means of a set screw 58, an eye 59 being formed on one side of the collar providing an enlarged guide for loosely receiving the lower end of a lift rod 60. A collar 6| is adjustably mounted on the rod 60 below the collar 51 and the upper end of the rod 60 is slidably received in a guide 62 secured to the inner edge of one of the ring rails 13 of the machine.

The upper end of the rod 60 is provided with an adjustable collar 63 which overlies the guide 62.

The other end of the bellcrank lever 54 carries a pivoted dog 64 by means of a pin 65, the dog being yieldably urged downwardly by a leaf spring 66 for engaging the teeth 61 of a ratchet 68 which is also secured to the shaft 40.

The rotation of the ratchet by the dog 64 is limited by a cam 69 secured to the bracket 42 and having an inclined riser adapted for engagement by a pin H projecting laterally from one side of the dog to disengage the dog from the ratchet after the initial operating movement of the dog and by reason of which a uniform rotary movement is imparted to the ratchet regardless of the throw of the bellcrank lever.

A spring actuated pivoted stop 12 also engages the ratchet to prevent reverse movement thereof.

In the operation of the device, the ring rail 13 moves upwardly and downwardly during warp Winding of the thread or yarn on the bobbins, each complete movement of the ring rail representing a predetermined yardage wound on the bobbin. At the completion of each movement of the ring rail the lift rod 60 will actuate the lever 54 to move the ratchet a distance of one tooth which thereby rotates the shaft 40 to move the arm 21 a like distance in a clockwise direction, as shown in Figure 3, toward the stem 26 for opening the valve 24.

Air is then admitted from the supply pipe 25 to the cylinder 22 forcing the plunger 2| downwardly to actuate the lever l9 which then opens the valve l1 and admitting compressed air into the stop motion operating cylinder l2 for moving the belt shifter to its inactive position and stop the machine. The arm 21 may be adjusted relative to the fixed dial 43 to designate the yardage to be wound on the bobbins before the arm reaches its actuating engagement with the valve 24.

It is believed that the details of construction and manner of use of the device will be readily understood from the foregoing without further detailed explanation.

Having described the claimed as new is:

1. A stop motion for a textile machine of the class described and in which a part of the machine has continuous reciprocatory motion, said stop motion including means for interrupting operation of the machine, mechanism having step-by-step movement operatively connected to the said reciprocating part and including a dial and a valve actuating arm movable relative to the dial and operated by said mechanism, and pneumatic means providing an operative connection between the stop motion and said mechanism and including a valve in the path of movement of said arm for actuation of the stop motion upon completion of a predetermined number of strokes of the said reciprocating part.

2. A stop motion for a textile machine of the class described and in which a part of the machine has continuous reciprocatory motion, said stop motion including means for interrupting operation of the machine, mechanism having stepby-step movement operatively connected to the said reciprocating part, said mechanism including an actuating arm, pneumatic control means for the stop motion and including a valve disposed in the path of movement of said arm, and means operatively connecting the mechanism to said reciprocating part. I

3. A stop motion for a textile machine of the class described and in which a part of the machine has continuous reciprocatory motion, said stop motion including means for interrupting operation of the machine, mechanism having stepby-step movement operatively connected to the said reciprocating part, said mechanism including an actuating arm having step by step movement, pneumatic control means for the stop motion and including a valve disposed in the path of movement of said arm for opening the valve, and means operatively connecting the mechanism to said reciprocating part.

4. A stop motion for a textile machine of the class described and in which a part of the machine has continuous reciprocatory motion, said stop motion including means for interrupting operation of the machine, mechanism having progressive movement operatively connected to the said reciprocating part, said mechanism including a fixed dial, and an actuating arm having step by step movement relative to the dial, means for resetting the arm, pneumatic control means for the stop motion and including a valve disposed in the path of movement of said arm for opening the valve, and means operatively connecting the mechanism to said reciprocating part.

5. A stop motion for a textile machine of the class described and in which a part of the machine has continuous reciprocatory motion, said stop motion including means for interrupting operation of the machine, mechanism having progressive movement operatively connected to the invention, what is said reciprocating part, said mechanism including a fixed dial, and an actuating arm having step by step movement relative to the dial, means 'for resetting the arm, pneumatic control means for the stop motion and including a valve disposed in the path of movement of said arm for opening the valve, and a rod connecting the mechanism to said reciprocating part.

6. A stop motion for a textile machine of the class described and in which part of the machine has continuous reciprocatory motion, said stop motion including means for interrupting operation of the machine, mechanism having progressive movement operatively connected to the said reciprocating part, said mechanism including a fixed dial, an actuating arm associated therewith, and a pawl and ratchet device connected to the arm for imparting step by step movement to the arm, means for resetting the arm, pneumatic control means for the stop motion and including a valve disposed in the path of movement of the arm for opening the valve, and a rod connecting the ratchet to the said reciprocating part.

7. A stop motion control mechanism for a spinning machine of the class described and comprising in combination, a ring rail having reciprocating movement, a pneumatically operated device for interrupting operation of the machine, a compressed air line leading to the said device and having a valve therein, a second valve connected to the air line in advance of the first valve, said valves being normall closed, pneumatically operated means providing an operating connection between the valves for opening the first valve upon the opening of the second valve, and means for opening said second valve in accordance with the completion of a predetermined number of strokes of the ring rail.

8. A stop motion control mechanism for a spinning machine of the class described and comprising in combination, a ring rail having reciprocating movement, a pneumatically operated device for interrupting operation of the machine, a compressed air line leading to the said device and having a valve therein, a second valve connected to the air line in advance of the first valve, said valves being normally closed, pneumatically operated means providing an operating connection between the valves for opening the first valve upon the opening of the second valve, and means operatively connected to the ring rail for moving the second valve into open position upon completion of a predetermined number of strokes of the ring rail.

9. A stop motion control mechanism for a spinning machine of th class described and comprising in combination, a ring rail having reciprocating movement, a pneumatically operated device for interrupting operation of the machine, a compressed air line leading to the said device and having a valve therein, a second valve connected to the air line in advance of the first valve, said valves being normally closed, pneumatically operated means providing an operating connection between the valves for opening the first valve upon the opening of the second valve, and a step by step actuated mechanism operatively connected to the ring rail and arranged to open said second valve upon completion of a predetermined number of strokes of the ring rail.

10. A stop motion control mechanism for a spinning machine of the class described and comprising in combination, a ring rail having reciprocating movement, a pneumatically operated device for interrupting operation of the machine, a compressed air line leading to the said device and having a valve therein, a second valve connected to the air line in advance of the first valve, said valves being normally closed, pneumatically operated means providing an operating connection between the valves for opening the first valve upon the opening of the second valve, a step by step actuated mechanism, an arm movably carried by said mechanism and arranged for engaging and opening said second valve, and means operatively connecting the mechanism to the ring rail.

11. A stop motion control mechanism for a spinning machine of the class described and comprising in combination, a ring rail having reciprocating movement, a pneumatically operated device for interrupting operation of the machine, a compressed air line leading to the said device and having a valve therein, a second valve connected to the air line in advance of the first valve, said valves being normally closed, pneumatically operated means providing an operating connection between the valves for opening the first valve upon the opening of the second valve, a step by step actuated mechanism, an arm movably carried by said mechanism and arranged for engaging and opening said second valve, a fixed dial, said arm having a pointer arranged in association with the dial, means for resetting the arm relative to the dial, and means operatively connecting the mechanism to the ring rail.

12. A stop motion control mechanism for a spinning machine of the class described and comprising in combination, a ring rail having reciprocating movement, a pneumatically operated device for interrupting operation of the machine, a compressed air line leading to the said device and having a valve therein, a second valve connected to the air line in advance of the first valve, said valves being normally closed, pneumatically operated means providing an operating connection between the valves for opening the first valve upon the opening of the second valve, a lift rod operatively connected to the ring rail, a pawl and ratchet device operatively connected to the lift rod, an arm connected to the pawl and ratchet device for actuating the arm in a step by step movement, a fixed dial associated with the arm, means for resetting the arm relative to the dial, and an operating member for said second valve disposed in the path of movement of the arm for opening said second valve in accordance with a predetermined number of strokes of the ring rail.

HERMAN T. OVERBEY. 

